Articles related to "Fundamental Quantities"

The idea of a fundamental quantity is an important concept that underpins all of physics

Collisions problems are an important class of problems in physics. Momentum is conserved in all collisions. Kinetic energy is only conserved in elastic collisions.

Momentum is the mass times the velocity. In the absence of external forces, the total momentum of an isolated system must be conserved and remain constant.

In physics pressure is the force per unit area. There are many applications of this concept.

Speed and velocity are fundamental quantities needed to understand the physics of motion. They have precise meanings different from everyday use.

Physicists measure electric current in amps, electric potential difference in volts, and electrical resistance in ohms.